Unable to instantiate XML DOM document, please verify

Once i meet an error as stated in subject.
It was cause by the office 2007
Some able to fix it by going to add/remove program and repair the MSXML6 parser but i unable to fix the error.
At the end, i solved it with a easy method.
Here is a simplest way to fix the error:
go to command prompt and type regsvr32 msxml6.dll
:)